Sash-fastener



(No Model.)

P. J. DONOHUE'.

SASH" FASTBNE'R.

' No. 317,321. Patented May 5, 1885.

N ERS. Fholo-Lnhognph 1, the amount of such play of the lower sash In Figs. 3 and 4 the cams D are pivoted to 100 UNIT D STATES PATENT OFFICE.

PATRICK J. DONOHUE, OF CHICAGO, ILLINOIS.

SASH-FASTENER.

SPEL'IFICATIQN forming part of Letters Patent No. 317,321, dated May 5, 1835.

Application filtd Xovrnib. r 5, 18: 1.

To aZZ whom it may concern:

Be it known that I, PATRICK J. DONOHUE, of Chicago, in the county of Cook and State of Illinois, have invented certain new and use i'ul Improvements in Sash-Fasteners; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to sash-fasteners wherein the meeting-rails of the upper and lower sash are engaged with each other; and it consists in the matters hereinafter set forth, and pointed out in the appended claims.

In the accompanying drawings, Figure l is a vertical section transverse to the plane of the sash of a window-frame and its contained sash having my improved fastener applied thereto, said section being taken in the line 00 w of Fig. 2. Fig. 2 is a horizontal section taken in the line a w of Fig. 1. Fig. 3 is a fragmentary front elevation of the sash in their meeting portion and of the adjacent window-frame, showing a different mode of applying the cams for forcing the meetingrails together. Fig. 4 is a horizontal section in the line no as of Fig. 3. Fig. 5 is a perspective view of one of the engaging plates applied to the meeting-rail provided with a projection. Fig. 6 is a perspective view of another plate attached to the opposing meeting-rail and provided with a recess to receive. the projection of Fig. 5. Fig. 7 is a modification.

A A is the window-frame, of which a a" are the sash-grooves, a being the parting-strip, and a the inner stop. 7

B and B are respectively the upper and lower sash, the meeting-rails of which are marked, respectively, b and t.

G C are plates constructed to engage each other, and attached to the adjacent faces of the meeting-rails, the groove a, in which the lower sash, B, runs, being wide enough to allow said plates 0 and O to disengage, or, in other words, said groove being wide enough to allow a little movement of the lower sash, B, at its meeting-rai1 toward and from the lower rail of the upper sash, B. In the drawings, Fig.

(No model.)

is exaggerated for the purpose of greater clearness, and the excessive width of the groove 11 is present in its lower part as well as at the meetingrails, which need not, however, be the case in practice.

D D are two cams constructed and arranged to force the upper portion of the lower sash, B, inward against the sash B, and to thereby throw the plates 0 and O on the adjacent faces of the meetingrails into engagement. As here constructed, the plate 0 is provided with a projection, 0, having a downwardly and inwardly inclined face, 0, and the plate 0 is provided with an aperture or recess, 0 of suitable size and shape to admit the projection c. It is not strictly material to which of the meeting-rails these engaging plates 0 and O are respectively fixed; but, as shown in Fig. 1. the plate G is attached to the meeting-rail b of the lower sash, B, and the plate 0 is attached to the meeting-rail of the sash B, so that when engaged they have the relation shown clearly in Fig. 1.

The cams D, Figs. 1 and 2, are pivoted eccentrically to the jams of the frame A, and are provided with levers or handles d, by which the cams are thrown. By means of said cams the upper portion of the lower sash, B, may be forced inward, so as to bring the projection c of the plate 0 into the recess 0 of the plate 0, and to hold the parts in this relation, with the obvious effect of firmly securing the-sash from movement until released. When it is desired to release the sash for the purpose of opening the window, the cams D are rotated out of bearing with the sash B, and the latter may be drawn forward to release the plates 0 and G from engagement, whereupon either sash may be moved at pleasure.

The cams D, placed as shown in said Fig. 1, may obviously be made to hold the sash B locked in a raised position, if desired, by arranging the eccentric portion of said cam in the opposite direction from that shown in Fig. 1, and in a manner already well known, it being of course immaterial for the purpose of moving the sash B inwardly whether the cams D are arranged to throw one way or the other.

the meeting-rail b of the lower sash, and instead of being eccentric have their circular edges tapered or wedgeshaped, as clearly indicated in Fig. 4:. Posts or pins (1, firmly secured to the inner stops, a or to the sides of the window-frame, in a position indicated in Figs. 3 and 4:, furnish suitable stationary parts to be acted upon by said cams D, so that when the latter are rotated against said pins or posts (1 the plates 0 and G are thrown into engagement, or by an opposite movement of the cams are released, as may be desired.

I do not restrict myself to the particular form of the engaging devices upon the meeting-rails, inasmuch as said meeting-rails may be constructed with irregular surfaces adapted to engage each other directly in various ways without the application of plates thereto, as clearly indicated in Fig. 7.

I claim as my invention 1. The combination, with a window-frame having a groove for the lower sash wider than the thickness of the sash, of meeting rails provided with interlocking recesses and projections, whereby vertical movement of the said sashes is prevented, and a cam or cams applied to force and hold the meeting'rails in position for the engagement of the said recesses and projections, substantially as described.

2. The combination, with a window-frame having a groove for the lower sash, constructed to afford inward and outward play in the sash, of plates applied to the meeting-rails, one of said plates being provided with a recess, and the other with a projection which engages the recess, to prevent vertical movement of the sashes, and a cam or cams applied to force and hold the meeting-rails in position for the engagement of said recesses and projections, substantially as described.

In testimony that I claim the foregoing as my invention I affix my signature in presence of two witnesses.

PATRICK J. DONOHUE.

\Vitnesses:

WV. J. OSGOOD, OLIVER E. PAGIN. 

